these 2 derivations will be built:
  /nix/store/3vw5406skvijxqjjhxm9xkaib8v6q8al-flake-inputs.drv
  /nix/store/rdl8zbjxq12sbn6981p9xg7rlgr67k5d-check-flake-inputs.drv
building '/nix/store/3vw5406skvijxqjjhxm9xkaib8v6q8al-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&restart-grace=900&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/3vw5406skvijxqjjhxm9xkaib8v6q8al-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building 3vw5406skvijxqjjhxm9xkaib8v6q8al-flake-inputs.drv
building '/nix/store/rdl8zbjxq12sbn6981p9xg7rlgr67k5d-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&restart-grace=900&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/rdl8zbjxq12sbn6981p9xg7rlgr67k5d-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building rdl8zbjxq12sbn6981p9xg7rlgr67k5d-check-flake-inputs.drv